(3GdeZfWjSjI h GdcgQHGA (B((3eHGOF h JLGQH ejSQI(B) / s - (3Hhd, OhQKjs; (3GdNWjH, CMeO Tajbs ((3HjQhJ (B:s (3ecJHI dHfGf,s, 1982)
Keywords: (3GdcgQHGAs; (3fGTGhf cHGQ (B(15-18) (3Sfgs